Arizona Territorial Period
Beginning in the 19th century, Americans increasingly settled in the Arizona Territory, following the Mexican-American War and the subsequent Gadsden Purchase that included the area of southern Arizona. George Pusch, a German immigrant, settled in the area of Oro Valley in 1874 and established a cattle ranch. This ranch was unique because it utilized a steam pump to provide water, eventually popularizing Pusch's property as the Steam Pump Ranch on the Cañada del Oro. The steam pump was one of only two in the Arizona Territory.
Pusch's ranch provided respite for settlers and travelers entering and leaving the Tucson area. Pusch Ridge is named in honor of George Pusch.
Ranching in the area continued to flourish as greater numbers of Americans settled in the Arizona Territory. Large ranching families in the Oro Valley area included the Romeros and the Rooneys.
Gold rushers into the American West also were attracted to southern Arizona, where gold was said to be in abundance in and around the Santa Catalina Mountains north of Tucson. Fueled by the legend of the lost Iron Door Gold Mine in the mountains, those in search of gold trekked through the Oro Valley area focusing their attention along the Cañada del Oro washbed.
Read more information about the early historic settlement of Oro Valley.